Php, vbscript, perl, and perhaps other languages allow the interspersal of code and html in the same file. You can't do that with python. So, if you begin to wade into making websites with python you may be a little lost until you grasp the concept of separating code from templates (the html portion) and how you populate your templates with your code values. Django is a popular choice, but some like smaller frameworks like flask, and others.
anyway I'm not interested in building website I've only to plot/show data collecting them from a sensor and plot them in a realtime graph (for example temperature).
-- https://mail.python.org/mailman/listinfo/python-list